body {
  background-color: #F8F8F8;
  font-family: 'Open Sans', sans-serif;
  font-size: 14px;
  font-weight: normal;
  line-height: 1.2em;
  margin: 15px;
}

#app {
  margin-left: auto;
  margin-right: auto;
  width: 728px;
}

#ads {
  margin-left: auto;
  margin-right: auto;
  width: 728px;
}

#header {
  margin-bottom: 10px;
}

canvas {
  border: 4px dotted #FF0000;
  cursor: pointer;
}